Multiple choice

Match the diseases in Column-I with causative pathogens in Column-II and select the correct answer ||| |---|---| |Column-I |Column-II| |P. Tropical cotton rust|1. Phakopsora gossypii| |Q. Powdery mildew of pea|2. Trametes versicolor| |R. Wood rot of pear|3. Helminthosporium solani| |S. Silver scurf of potato|4. Erysiphe pisi| | |5. Polyscytalum pustulans|

  1. P - 1, Q - 4, R - 2, S - 3

  2. P - 2, Q - 4, R - 1, S - 5

  3. P - 4, Q - 1, R - 2, S - 3

  4. P - 1, Q - 4, R - 5, S - 2

  5. P - 5, Q - 4, R - 2, S - 3
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A Correct answer
Explanation

Tropical cotton rust is caused by the fungus Phakopsora gossypii. The causative agent for powdery mildew in pea is Erysiphe pisi. Wood rot of pear is caused by the fungus Trametes versicolor. Helminthosporium solani causes silver scurf disease in potato. Hence, the correct answer using the codes is P - 1, Q - 4, R - 2, S - 3.

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